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Sample work

See what the work looks like before you order.

Finished samples from the areas I take on. Look, download, check.

Sample work (demo), not a client job. Built as a trial task with invented example data; the check figures below come from the automatic test run and are not polished.

Web Pages

Landing Page for a Painting Business

A page that tells you on a phone within five seconds what the business does, where it works and how to request a quote. Fast, no page builder, no third-party scripts.

Design & Print

Advertising Banner: a campaign in six formats

A campaign visual for a fictional company in all common formats: Facebook/LinkedIn, Instagram, Story, and the standard display formats for Google Ads. Dimensions, file size, legibility, and contrast are automatically checked.

Video & Animation

YouTube Script: Short Documentary Video with Scenes, Overlays and Sources

A script for a short documentary video about the moon landing: introduction with the problem, one question per section, an ending that resolves the introduction. Every scene has visual, voiceover and overlay, every claim has a source. The corresponding video is on the GL Tools channel.

Data & Dashboards

Sales Dashboard with filters by region and channel

Revenue, orders and order value at a glance, weekly trend, regions and sales channels. A single click on a filter recalculates everything. Runs in the browser, on mobile as well as on desktop.

Games & Interactive

Learning Quiz with Leitner Box Review

Questions come from a spreadsheet, the quiz evaluates them and schedules reviews based on the flashcard principle. Import, export, and evaluation were automatically tested.

WordPress

WooCommerce Extension: Quantity Discount per Category

A small plugin that applies a discount to a product category starting from a specific quantity. Tested using real shopping carts on a local WooCommerce installation, accurate to the cent, with verification without the plugin.

AI & Automation

AI Cost Analysis: Where an App Loses Money on Model Calls

From the call log of a sample app, it was determined where the costs for language models originate: duplicate requests, retries, overly large models, long prompts, missing output limits. Every proposal was checked for equal quality.

3D Printing

3D Printing: Design on Request, Print-Ready as STL

You describe the part: purpose, dimensions, how it is mounted. This results in a parametric model checked for watertightness and wall thickness, with studio images, STL files, and printing instructions. The models here are the same ones available for purchase on Cults3D.

3D Printing

Furniture CAD: Custom Cabinet as 3D Model with Cutting List

From width, depth, height, panel thickness, and number of shelves, a cabinet carcase is created as a 3D model, along with a cutting list for the joinery and front and rear views. External dimensions, watertightness, and panel count are automatically checked against the model.

Video & Animation

Mascot Animation: a bird and a mouse introduce themselves

Two vector characters based on a description, a round bird and a mouse with a long tail. They wave, hop, wag, and blink, and each speaks its own line. Every frame is rendered individually, so nothing stutters.

Games & Interactive

Godot: a 2D dodge game with score, speed and restart

A small 2D game in GDScript: obstacles fall, the player dodges, the speed increases with the score, and after a collision, a restart continues the game. The game logic is automatically tested.

Design & Print

Album cover and cassette J-card: square cover, thumbnail test and print-ready PDF

An album cover for a fictional black metal band in a raw charcoal and ink style: 3000 x 3000 px for digital release, plus the cassette J-card as a print PDF with bleed, crop and fold marks. Dimensions, color profile, legibility of the text even as a small preview image, and the safety zones at the fold edges are measured.

Video & Animation

Live subtitles: spoken German appears as text during the broadcast

Continuous audio is recognized in short segments and displayed as subtitles, with the actual recognition latency. Technical terms come from a glossary list, and a word at the end of a segment is only shown when the next segment confirms it. Everything runs locally, without a cloud service.

Email & Newsletter

Email sequence: Welcome series with workflow, copy, and import file

A welcome series for a fictional business including trigger, goal, intervals, and exit condition. Each email is checked for subject line, preview text, length, exactly one call-to-action, placeholders with fallback values, and spam words; includes a CSV for import.

Software & Web Apps

Database Design: Schema from requirements, with diagram and measured queries

For a fictional business: a normalized schema derived from requirements, including keys, foreign keys, indexes, and uniqueness. The initial schema contained standard errors; the final schema runs with demo data, revenue figures are correct, and the query plan utilizes the indexes.

Software & Web Apps

API Design Review: Interface description checked and revised

A demo description in OpenAPI format with typical flaws: verbs in the path, lists without pagination, missing error responses, no authentication, dead references. The reviewer identifies them, the revised description passes.

AI & Automation

Skill Security Audit: Detecting malicious patterns before installation

A demo skill in both a suspicious and a clean version. The auditor reads all files and detects injection, download-and-execute, exfiltration of environment variables, access to key files, code from external text, invisible characters, and excessive permissions. Nothing is installed or executed.

Code & Bugs

Secrets scanning: Finding credentials in code without exposing them

A demo repository with invented, intentionally fake credentials. The scanner finds them in multiple files, reports them without plain text, generates .gitignore and .env.example, and reports nothing when the code is clean. Real keys are not present in any part.